Teknium
277 lines
12 KiB
Python
277 lines
12 KiB
Python
"""Peer-backed session transport for one hosted-room member task.
|
|
|
|
This adapter implements :class:`InternalSessionRPC` without using canonical
|
|
Bot Chat. The remote client must resolve a hidden ``Group: <room_id>`` session
|
|
with ``source=bot_room`` and verify the scoped grant at admission.
|
|
"""
|
|
|
|
from __future__ import annotations
|
|
|
|
import hashlib
|
|
import time
|
|
import uuid
|
|
from collections.abc import Callable, Mapping, Sequence
|
|
from dataclasses import dataclass
|
|
from typing import Any, Protocol
|
|
|
|
from gateway.hosted_room_driver import TaskIdentity
|
|
from gateway.hosted_room_peer import HostedMemberDispatch, PROTOCOL_VERSION
|
|
from tui_gateway.hosted_room_driver import (
|
|
ROOM_SESSION_SOURCE, HostedRoomBinding, InternalSessionRPC, room_session_title)
|
|
|
|
|
|
class HostedRoomPeerClient(Protocol):
|
|
"""Authenticated client for a target gateway's narrow room-member API."""
|
|
|
|
def bind_room_scope(self, **scope: Any) -> None: ...
|
|
|
|
def prepare(
|
|
self, *, room_id: str, profile: str, source: str, grant: str, create: bool,
|
|
expected_session_id: str | None = None,
|
|
) -> Mapping[str, Any] | None: ...
|
|
|
|
def dispatch(self, *, dispatch: Mapping[str, Any], grant: str) -> Mapping[str, Any]: ...
|
|
|
|
def history(
|
|
self, *, room_id: str, profile: str, session_id: str, grant: str
|
|
) -> Sequence[Mapping[str, Any]]: ...
|
|
|
|
def status(
|
|
self, *, room_id: str, profile: str, session_id: str, grant: str
|
|
) -> Mapping[str, Any]: ...
|
|
|
|
def stop(self, *, dispatch: Mapping[str, Any], grant: str) -> Mapping[str, Any] | None: ...
|
|
|
|
def stop_receipt(
|
|
self, *, task_id: str, execution_generation: int, grant: str
|
|
) -> Mapping[str, Any] | None: ...
|
|
|
|
|
|
@dataclass(frozen=True)
|
|
class RoomLinkCandidate:
|
|
"""One address/provider for the same authenticated target gateway."""
|
|
|
|
name: str
|
|
mode: str
|
|
target_install_id: str
|
|
client: HostedRoomPeerClient
|
|
|
|
|
|
class FailoverHostedRoomPeerClient:
|
|
"""Try alternate links without changing target or logical task identity."""
|
|
|
|
def __init__(
|
|
self, candidates: Sequence[RoomLinkCandidate], *, reprobe_interval_seconds: float = 60,
|
|
clock: Callable[[], float] = time.monotonic) -> None:
|
|
if not candidates:
|
|
raise ValueError("at least one RoomLink candidate is required")
|
|
if len({candidate.target_install_id for candidate in candidates}) != 1:
|
|
raise ValueError("RoomLink candidates must target one installation")
|
|
if reprobe_interval_seconds <= 0:
|
|
raise ValueError("reprobe_interval_seconds must be positive")
|
|
self.candidates = tuple(candidates)
|
|
self._active = 0
|
|
self.reprobe_interval_seconds = float(reprobe_interval_seconds)
|
|
self.clock = clock
|
|
self._last_primary_probe = 0.0
|
|
|
|
@property
|
|
def active_link(self) -> RoomLinkCandidate:
|
|
return self.candidates[self._active]
|
|
|
|
def _call(self, method: str, **kwargs):
|
|
"""Try the active link (re-probing the primary after a cooldown), then the rest.
|
|
|
|
Ambiguous or non-retryable failures propagate immediately: failing over
|
|
after an ambiguous dispatch could run the same task twice.
|
|
"""
|
|
now = self.clock()
|
|
order = [self._active]
|
|
if self._active != 0 and now - self._last_primary_probe >= self.reprobe_interval_seconds:
|
|
self._last_primary_probe = now
|
|
order = [0, self._active]
|
|
order.extend(index for index in range(len(self.candidates)) if index not in order)
|
|
last_error = None
|
|
for index in order:
|
|
try:
|
|
result = getattr(self.candidates[index].client, method)(**kwargs)
|
|
except Exception as exc:
|
|
if getattr(exc, "ambiguous", False) or not getattr(exc, "retryable", False):
|
|
raise
|
|
last_error = exc
|
|
continue
|
|
self._active = index
|
|
return result
|
|
if last_error is not None:
|
|
raise last_error
|
|
raise RuntimeError("no RoomLink candidate was attempted")
|
|
|
|
def prepare(self, **kwargs):
|
|
return self._call("prepare", **kwargs)
|
|
|
|
def dispatch(self, **kwargs):
|
|
return self._call("dispatch", **kwargs)
|
|
|
|
def history(self, **kwargs):
|
|
return self._call("history", **kwargs)
|
|
|
|
def status(self, **kwargs):
|
|
return self._call("status", **kwargs)
|
|
|
|
def stop(self, **kwargs):
|
|
return self._call("stop", **kwargs)
|
|
|
|
def bind_room_scope(self, **kwargs):
|
|
for candidate in self.candidates:
|
|
bind = getattr(candidate.client, "bind_room_scope", None)
|
|
if callable(bind):
|
|
bind(**kwargs)
|
|
|
|
|
|
@dataclass(frozen=True)
|
|
class PeerMemberRoute:
|
|
"""Secret-free target coordinates plus a separately stored room grant."""
|
|
|
|
home_install_id: str
|
|
member_id: str
|
|
target_install_id: str
|
|
target_profile: str
|
|
capability_digest: str
|
|
cancellation_scope_id: str
|
|
trace_id: str
|
|
grant: str
|
|
execution_policy_digest: str = ""
|
|
|
|
|
|
def build_member_dispatch(
|
|
*, binding: HostedRoomBinding, route: PeerMemberRoute, room_id: str, task_id: str,
|
|
target_profile: str, execution_generation: int, source_event_seq: int, prompt: str,
|
|
trace_id: str) -> HostedMemberDispatch:
|
|
"""Build the fully fenced member dispatch shared by submit and recovery."""
|
|
return HostedMemberDispatch.from_mapping({
|
|
"protocol_version": PROTOCOL_VERSION,
|
|
"room_id": room_id,
|
|
"home_install_id": route.home_install_id,
|
|
"authority_gateway_id": binding.gateway_id,
|
|
"authority_epoch": binding.authority_epoch,
|
|
"member_id": route.member_id,
|
|
"target_install_id": route.target_install_id,
|
|
"target_profile": target_profile,
|
|
"task_id": task_id,
|
|
"execution_generation": execution_generation,
|
|
"source_event_seq": source_event_seq,
|
|
"cancellation_scope_id": route.cancellation_scope_id,
|
|
"prompt": prompt,
|
|
"prompt_digest": hashlib.sha256(prompt.encode("utf-8")).hexdigest(),
|
|
"capability_digest": route.capability_digest,
|
|
"execution_policy_digest": route.execution_policy_digest,
|
|
"trace_id": trace_id})
|
|
|
|
|
|
class PeerHostedRoomTransport(InternalSessionRPC):
|
|
"""Translate runtime session operations into recipient-validated peer RPC."""
|
|
|
|
def __init__(
|
|
self, *, binding: HostedRoomBinding, route: PeerMemberRoute,
|
|
client: HostedRoomPeerClient, source_event_seq: int = 1, task_id: str | None = None,
|
|
execution_generation: int | None = None) -> None:
|
|
self.binding = binding
|
|
self.route = route
|
|
self.client = client
|
|
if isinstance(source_event_seq, bool) or source_event_seq < 1:
|
|
raise ValueError("peer room source_event_seq must be positive")
|
|
self.source_event_seq = int(source_event_seq)
|
|
self.task_id = task_id
|
|
self.execution_generation = execution_generation
|
|
self._session_id: str | None = None
|
|
self._dispatch: HostedMemberDispatch | None = None
|
|
bind_scope = getattr(self.client, "bind_room_scope", None)
|
|
if callable(bind_scope):
|
|
bind_scope(
|
|
room_id=binding.room_id, home_install_id=route.home_install_id,
|
|
authority_gateway_id=binding.gateway_id, authority_epoch=binding.authority_epoch,
|
|
member_id=route.member_id, target_install_id=route.target_install_id,
|
|
target_profile=route.target_profile)
|
|
|
|
def _validate_coordinates(self, *, profile: str, source: str, title: str | None = None) -> None:
|
|
if source != ROOM_SESSION_SOURCE:
|
|
raise ValueError("peer room transport requires source=bot_room")
|
|
if profile != self.route.target_profile:
|
|
raise ValueError("peer room transport profile does not match its grant")
|
|
if title is not None and title != room_session_title(self.binding.room_id):
|
|
raise ValueError("peer room transport title does not match room identity")
|
|
|
|
def _scoped(self, **extra: Any) -> dict[str, Any]:
|
|
"""Room id + grant keyword arguments shared by every scoped client call."""
|
|
return {"room_id": self.binding.room_id, "grant": self.route.grant, **extra}
|
|
|
|
def _prepare(self, *, profile: str, source: str, create: bool, **extra):
|
|
return self.client.prepare(
|
|
**self._scoped(profile=profile, source=source, create=create, **extra))
|
|
|
|
def resolve_exact(self, *, profile: str, title: str, source: str) -> Mapping[str, Any] | None:
|
|
self._validate_coordinates(profile=profile, source=source, title=title)
|
|
return self._prepare(profile=profile, source=source, create=False)
|
|
|
|
def create(self, *, profile: str, title: str, source: str) -> Mapping[str, Any]:
|
|
self._validate_coordinates(profile=profile, source=source, title=title)
|
|
session = self._prepare(profile=profile, source=source, create=True)
|
|
if session is None:
|
|
raise RuntimeError("peer did not create the room session")
|
|
self._session_id = str(session.get("session_id") or session.get("id") or "")
|
|
return session
|
|
|
|
def resume(self, *, profile: str, session_id: str, source: str) -> Mapping[str, Any]:
|
|
self._validate_coordinates(profile=profile, source=source)
|
|
session = self._prepare(
|
|
profile=profile, source=source, create=False, expected_session_id=session_id)
|
|
if session is None:
|
|
raise RuntimeError("peer room session is unavailable")
|
|
self._session_id = session_id
|
|
return session
|
|
|
|
def submit(
|
|
self, *, profile: str, session_id: str, prompt: str, source: str, task: TaskIdentity,
|
|
execution_generation: int, on_terminal: Callable[[Mapping[str, Any]], None],
|
|
) -> Mapping[str, Any]:
|
|
self._validate_coordinates(profile=profile, source=source)
|
|
if self._session_id not in {None, session_id}:
|
|
raise ValueError("peer room session changed during admission")
|
|
dispatch = build_member_dispatch(
|
|
binding=self.binding, route=self.route, room_id=task.room_id, task_id=task.task_id,
|
|
target_profile=profile, execution_generation=execution_generation,
|
|
source_event_seq=self.source_event_seq, prompt=prompt,
|
|
trace_id=self.route.trace_id or f"trace-{uuid.uuid4().hex}")
|
|
self._dispatch = dispatch
|
|
self._session_id = session_id
|
|
result = self.client.dispatch(dispatch=dispatch.as_mapping(), grant=self.route.grant)
|
|
if result.get("status") in {"settled", "failed", "cancelled"}:
|
|
on_terminal(result)
|
|
return result
|
|
|
|
def history(self, *, profile: str, session_id: str, source: str) -> Sequence[Mapping[str, Any]]:
|
|
self._validate_coordinates(profile=profile, source=source)
|
|
return self.client.history(**self._scoped(profile=profile, session_id=session_id))
|
|
|
|
def info(self, *, profile: str, session_id: str, source: str) -> Mapping[str, Any]:
|
|
self._validate_coordinates(profile=profile, source=source)
|
|
return self.client.status(**self._scoped(profile=profile, session_id=session_id))
|
|
|
|
def interrupt(
|
|
self, *, profile: str, session_id: str, source: str, expected_task_id: str
|
|
) -> Mapping[str, Any] | None:
|
|
self._validate_coordinates(profile=profile, source=source)
|
|
dispatch = self._dispatch
|
|
if dispatch is None:
|
|
if (
|
|
self.task_id != expected_task_id
|
|
or not self.execution_generation
|
|
or not hasattr(self.client, "stop_receipt")):
|
|
return None
|
|
return self.client.stop_receipt(
|
|
task_id=expected_task_id, execution_generation=self.execution_generation,
|
|
grant=self.route.grant)
|
|
if dispatch.task_id != expected_task_id:
|
|
return None
|
|
return self.client.stop(dispatch=dispatch.as_mapping(), grant=self.route.grant)
|